|Publication number||US7251970 B2|
|Application number||US 10/545,959|
|Publication date||Aug 7, 2007|
|Filing date||Feb 24, 2004|
|Priority date||Mar 11, 2003|
|Also published as||CN1759223A, CN1759223B, EP1606481A1, US20060150695, WO2004081323A1|
|Publication number||10545959, 545959, PCT/2004/90, PCT/FI/2004/000090, PCT/FI/2004/00090, PCT/FI/4/000090, PCT/FI/4/00090, PCT/FI2004/000090, PCT/FI2004/00090, PCT/FI2004000090, PCT/FI200400090, PCT/FI4/000090, PCT/FI4/00090, PCT/FI4000090, PCT/FI400090, US 7251970 B2, US 7251970B2, US-B2-7251970, US7251970 B2, US7251970B2|
|Original Assignee||Abloy Oy|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (37), Referenced by (2), Classifications (18), Legal Events (3)|
|External Links: USPTO, USPTO Assignment, Espacenet|
The invention relates to a cylinder housing arrangement.
Conventionally a cylinder housing consists of one piece, inside of which a lock cylinder with its locking members are installed from behind, whereby the cylinder housing itself or separate protection elements to be possibly mounted in front thereof form the front surface of the lock. It is possible to install the lock cylinder also from the front of the cylinder housing. As for the strength properties, a front-mounted lock is clearly superior to a conventional lock, if one attempts to break it by striking the lock cylinder inwards. A front-mounted lock is disclosed in the Finnish utility model No. 3629. In this solution the lock cylinder is provided with a separate profiled plate to be mounted at the end thereof forming a part of the front surface of the cylinder housing. The lock cylinder is attached to the cylinder housing by a security plate mounted onto its back end, which plate may be affected by a special key, if the aim is to replace the tumbler disc package of the lock cylinder. The solution is thus complicated and fairly awkward to use.
An object of the present invention is to provide a novel cylinder housing arrangement having a simple structure and being easily assembled and disassembled, which arrangement makes it possible to install the lock cylinder and replace its locking members from the front of the cylinder housing. An aim is also to improve the burglary resistance properties of the lock. A further aim is to provide an arrangement, which is advantageous from the viewpoint of manufacturing technique providing a wide range of options for adapting the cylinder housing to various objects of installation.
According to the invention the cover part is arranged to be installed in the crosswise direction relative to the cylinder housing at the end of the body part on the inserting side of a key, so that it is locked onto the body part in the axial direction of the cylinder housing. This kind of a lock is easy to assemble and disassemble e.g. in order to re-key it. The material of the separate cover part may, if so desired, differ from that of the body part. Naturally also the finishing of the cover part may be different from that of the body part, whereby the cover part may be finished so as to be compatible with the environment. Further, the body part may be for instance unhardened and the cover part case-hardened.
In practice, in order to provide axial locking the body part and the cover part are provided with respective radial counter surfaces, which are arranged to cooperate with one another. The cover part may preferably have a cylindrical shape so that said counter surfaces thereof encircle its periphery. Thus the cover part forms a body of revolution, which may be rotated even when it is already assembled in position, whereby it preferably provides also a drilling shield.
If the front of the cover part is shaped so that it comprises a flange, which is in the radial direction wider than the body part and covers it entirely, the cover part may form the visible front end of the entire cylinder housing after the assembly thereof. Then the material of the installation aperture in the object of installation prevents the removal of the cover part from its position in the radial direction.
The cylinder housing arrangement may preferably also comprise a separate protection fitting element, which is arranged to be installed in the cylinder housing at least for the most part of the position of the cover part. Thus the protection fitting element keeps the cover part in its place. In addition, the protection fitting element may be shaped in different ways so that the assembly of the cylinder housing may be adapted according to the needs and restrictions of the application in question. Further, the protection fitting element may be manufactured by using various kinds of finishes totally independently of the rest of the cylinder housing. The burglary resistance of the lock may preferably be affected by varying the shape, material and material thickness of the protection fitting element, as required.
The body part is preferably provided with a shoulder for the protection fitting element, which shoulder together with a counter surface in the protection fitting element determines the position of the protection fitting element in the axial direction of the cylinder housing. At the same time it prevents the removal of the protection fitting element from the front end of the cylinder housing.
It is advantageous from the viewpoint of manufacturing technique that the body part is at least substantially cylindrical.
In the following the invention is described by way of example with reference to the attached drawings, in which
In the drawings the reference number 1 indicates a body part of a cylinder housing, inside of which a lock cylinder 3 is installed. The lock cylinder conventionally encloses a tumbler disc package and/or other corresponding locking elements, which are not, however, shown in more detail in this context, as they are not as such related to the present invention.
After the lock cylinder 3 together with its locking members is installed inside the body part 1 and attached thereto by means 7, a cover part 2 is installed onto the body part in the radial direction. For this purpose the body part is provided with counter surfaces 4 and the cover part with matching counter surfaces 5, which cooperate during the installation so that they lock the cover part 2 in the axial direction into position. Thus, the cover part 2 may, however, be removed freely in the radial direction also away from its place till the cylinder housing has been installed into its position, whereby the material of the object of installation prevents the removal.
The reference number 6 refers to a key of the lock, which, when opening the lock, is inserted through the cover part 2 into the lock cylinder in order to arrange the locking members (not shown) into the opening position of the lock in a way known per se.
The cylinder housing arrangement according to the invention may also include a separate protection fitting element 8, which is installed on top of the cover part 2 from behind the body part 1. For this reason the body part 1 is provided with a shoulder 1 a, against which a counter shoulder 8 a in the protection fitting element is pressed. Then the protection fitting element 8 at the same time locks the cover part 2 into position. The whole cylinder housing arrangement is attached to its object of installation by a locking nut 9.
In the arrangement according to
In the arrangement according to
The shaping of the parts may be varied, if needed, so that the cylinder housing arrangement may be installed in various objects of installation having different kinds of installation apertures. Similarly, the materials and material thicknesses of the various parts may be chosen on the basis of the required durability, costs etc.
Thus, the invention is not limited to the above-described applications, but several other modifications are conceivable in the scope of the appended claims.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US1422517 *||Sep 2, 1921||Jul 11, 1922||Yale & Towne Mfg Co||Pin-tumbler lock|
|US1422594 *||Sep 2, 1921||Jul 11, 1922||Yale & Towne Mfg Co||Pin-tumbler lock|
|US2061456 *||Nov 30, 1931||Nov 17, 1936||Falk Morris||Removable plug lock|
|US2225703||Apr 3, 1939||Dec 24, 1940||Dudley Lock Corp||Cylinder lock|
|US2883849 *||Feb 23, 1956||Apr 28, 1959||Lorenzo Wilson||Lock safety device for door locks|
|US2930219 *||Jun 6, 1957||Mar 29, 1960||Fansmith John F||Locking device|
|US3267707 *||Aug 27, 1964||Aug 23, 1966||Sargent & Greenleaf||Cylinder key lock|
|US3343386 *||Nov 15, 1965||Sep 26, 1967||Hall Mitchell A||Anti-probe device for key locks|
|US3422643 *||Oct 19, 1967||Jan 21, 1969||Master Lock Co||Laminated padlocks with removable cylinder mechanisms|
|US3635057 *||Aug 18, 1970||Jan 18, 1972||Master Lock Co||Auxiliary lock assemblage|
|US3735612 *||Jun 28, 1971||May 29, 1973||Popovici A||Double spring bolt re-keyable padlock|
|US3821886||Mar 9, 1972||Jul 2, 1974||Ladewig W||Pick-proof locks|
|US3835675 *||Mar 23, 1973||Sep 17, 1974||Junkunc Bros American Lock Co||Security padlock|
|US4107967 *||Dec 12, 1977||Aug 22, 1978||Grabb William C||Access-limiting apparatus|
|US4211097 *||Dec 15, 1978||Jul 8, 1980||Oy Wartsila Ab||Cylinder lock assembly|
|US4227388 *||Feb 12, 1979||Oct 14, 1980||Gus Nigrelli||Security covering box|
|US4290279 *||Jul 14, 1980||Sep 22, 1981||Unican Security Systems, Ltd.||Padlock with interchangeable cylinder|
|US4679418 *||Apr 2, 1986||Jul 14, 1987||Allen Mark L||High security cylinder lock|
|US4697444 *||Dec 4, 1985||Oct 6, 1987||Maffey Constant O||Security device for trailer|
|US4712403 *||May 6, 1987||Dec 15, 1987||Frank Markisello||Method of protecting lock cylinders from being wrenched or pulled|
|US4836001 *||May 28, 1987||Jun 6, 1989||Best Lock Corporation||High security lock|
|US4838055||May 2, 1988||Jun 13, 1989||Gallagher Francis E||Anti-thief key lock for vending machines|
|US4899564 *||Jun 3, 1988||Feb 13, 1990||Gilbert Leamon A||Doorknob security device|
|US4998953 *||Oct 10, 1989||Mar 12, 1991||Rolls-Royce Motor Cars Limited||Lock with an externally mountable escutcheon|
|US5010753 *||Jul 6, 1990||Apr 30, 1991||Lori Corporation||Interchangeable core lock|
|US5201202 *||Jun 24, 1991||Apr 13, 1993||Kam Hing K||Door lock security device|
|US5279138||May 4, 1992||Jan 18, 1994||Gallagher Francis E||Lock having removable lock-actuator cartridge|
|US5572890 *||Oct 14, 1994||Nov 12, 1996||American Lock Company||High security lock system including cover plate|
|US5685184 *||Apr 10, 1995||Nov 11, 1997||Gallagher; Francis E.||Pin tumbler lock|
|US6079240 *||Jul 24, 1998||Jun 27, 2000||Arrow Lock Manufacturing Company||Modular removable core cylinder assembly|
|US6155090 *||Oct 30, 1997||Dec 5, 2000||Assa Ab||Cylinder lock|
|US6185966 *||Jul 27, 1999||Feb 13, 2001||Waterson Chen||Lock apparatus|
|US6209365 *||Aug 11, 1999||Apr 3, 2001||Neelchine Engineering, Inc.||Lockout device|
|US6725696 *||Aug 10, 1998||Apr 27, 2004||Lockwood Australia Pty Ltd.||Disc tumbler lock and key|
|US6880376 *||Nov 12, 2003||Apr 19, 2005||Barshi Ko||Anti-twist key lock with changeable locking device|
|US7000441 *||Jan 17, 2003||Feb 21, 2006||Henry Squire & Sons Limited||Lock cylinder assembly|
|FI146868A||Title not available|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US9273487 *||Dec 21, 2007||Mar 1, 2016||United States Postal Service||High-strength lock, method of making high-strength lock, and method for mounting high-strength lock|
|US20080276666 *||Dec 21, 2007||Nov 13, 2008||The United States Postal Service||High-strength lock, method of making high-strength lock, and method for mounting high-strength lock|
|U.S. Classification||70/366, 70/373, 70/381, 70/367, 70/371, 70/424|
|International Classification||E05B29/04, E05B9/04, E05B15/16|
|Cooperative Classification||Y10T70/7661, E05B9/04, Y10T70/7633, Y10T70/7672, E05B15/1614, Y10T70/7638, Y10T70/7723, Y10T70/796|
|Sep 2, 2005||AS||Assignment|
Owner name: ABLOY OY, FINLAND
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MIELONEN, PEKKA;REEL/FRAME:016490/0438
Effective date: 20050809
|Feb 2, 2011||FPAY||Fee payment|
Year of fee payment: 4
|Jan 21, 2015||FPAY||Fee payment|
Year of fee payment: 8